"Any monster models listed on the spawning point that are already on the dungeon map may remove all wound and status effect tokens, regardless of the specific spawning point from which they were spawned."

So if a spawn point lists e.g. 1 Dragon Priest, then all Dragon Priests on the board remove all wound and status effect counters.

This question came up several times as soon as the new spawning rules were mentioned in the Kickstarter updates, and at one point Deke answered this very question with reference to Blaze Beetles.